1 string path="指定路径";
2
3 string filename =“需要查找的文件名.csv";
4
5 List<string> lineStringList = new List<string>();//存储所有读取到的文件
6
7 DirectoryInfo[] dateDirArr = new DirectoryInfo(path).GetDirectories(); //取指定路径下的所有目录
8
9 foreach (DirectoryInfo directoryInfo in dateDirArr)
10
11 {
12 string fullName = filePath + directoryInfo.Name + "\\" + filename;
13 if (!File.Exists(fullName))
14 {
15 continue;//目录下不存在此文件，返回。
16 }
17 FileInfo file = new FileInfo(fullName);
18 StreamReader reader = new StreamReader(file.FullName);
19 while (!reader.EndOfStream)//判断是否读取完成
20 {
21 lineStringList.Add(reader.ReadLine());
22 }
23 reader.Close();
24
25 }
